Deep RL reward function design for lane-free autonomous drivingDeep RL reward function design for lane-free autonomous driving Πλήρης Δημοσίευση σε Συνέδριο Conference Full Paper 2023-01-052022enThe research leading to these results has received funding from the European Research Council under the European Union’s Horizon 2020 Research and Innovation programme/ ERC Grant Agreement n. [833915], project TrafficFluid.In this paper we present an application of Deep Reinforcement Learning to lane-free traffic, where vehicles do not adhere to the notion of lanes, but are rather able to be located at any lateral position within the road boundaries. This constitutes an entirely different problem domain for autonomous driving compared to lane-based traffic, as vehicles consider the actual two dimensional space available, and their decision making needs to adapt to this concept. We also consider that each vehicle wishes to maintain a (different) desired speed, therefore creating many situations where vehicles need to perform overtaking, and react appropriately to the behaviour of others. As such, in this work, we design a Reinforcement Learning agent for the problem at hand, considering different components of reward functions tied to the environment at various levels of information. Finally, we examine the effectiveness of our approach using the Deep Deterministic Policy Gradient algorithm.http://creativecommons.org/licenses/by-nc-nd/4.0/254-26620th International Conference on Practical Applications of Agents and Multi-Agent SystemsAdvances in Practical Applications of Agents, Multi-Agent Systems, and Complex Systems Simulation. The PAAMS Collection.Karalakou_et_al_Int. Conf. Practical Appl. of Agents Multi-Agent Syst._2022_manuscript.pdfChania [Greece]Library of TUC2022-12-21application/pdf637.5 kBfree Karalakou Athanasia Καραλακου Αθανασια Troullinos Dimitrios Τρουλλινος Δημητριος Chalkiadakis Georgios Χαλκιαδακης Γεωργιος Papageorgiou Markos Παπαγεωργιου Μαρκος Springer Deep reinforcement learning Lane-free traffic Autonomous driving